7. Fair Value Measurements

We apply the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

The following tables summarize assets measured at fair value on a recurring basis (in thousands):

The Level 2 marketable securities include U.S treasury and government agency securities, corporate debt securities, state and local municipal securities and variable-rate demand notes.  Fair values are based on quoted market prices for similar assets or liabilities or determined using inputs that use readily observable market data that are actively quoted and can be validated through external sources, including third-party pricing services, brokers and market transactions.  We review the pricing techniques and methodologies of the independent pricing service for Level 2 investments and believe that its policies adequately consider market activity, either based on specific transactions for the security valued or based on modeling of securities with similar credit quality, duration, yield and structure that were recently traded.  We monitor security-specific valuation trends and we make inquiries with the pricing service about material changes or the absence of expected changes to understand the underlying factors and inputs and to validate the reasonableness of the pricing.

Assets and liabilities recognized or disclosed at fair value on the consolidated financial statements on a nonrecurring basis include items such as fixed assets, operating lease right-of-use-assets, goodwill, other intangible assets and other assets. These assets are measured at fair value if determined to be impaired. During the three months ended October 29, 2022, we recognized $0.1 million in impairment losses related to operating lease right-of-use assets and $0.2 million in impairment losses related to fixed assets. During the nine months ended October 29, 2022, we recognized $0.2 million in impairment losses related to operating lease right-of-use assets and $0.2 million in impairment losses related to fixed assets. During the three months ended October 30, 2021, we recognized no impairment losses related to operating lease right-of-use assets or fixed assets. During the nine months ended October 30, 2021, we recognized impairment losses of $2.1 million related to operating lease right-of-use assets and no impairment losses related to fixed assets.